CVE-2026-77151: lin-snow Ech0 crypto.go MD5Encrypt risky encryption
A security flaw has been discovered in lin-snow Ech0 up to 5.4.1. Affected by this issue is the function MD5Encrypt of the file internal/util/crypto/crypto.go. Performing a manipulation results in risky cryptographic algorithm. Remote exploitation of the attack is possible. The complexity of an attack is rather high. The exploitation is known to be difficult. Upgrading to version 5.4.2 can resolve this issue. The patch is named 9ce19a3b0d0765086a655f45d3a706ec1810404f. It is recommended to upgrade the affected component.
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
lin-snow Ech0to a version that resolves this vulnerability.Fixed in 5.4.2Patch 9ce19a3b0d0765086a655f45d3a706ec1810404f
Event History
Frequently Asked Questions
Which versions require remediation?
lin-snow Ech0 versions up to and including 5.4.1 are affected. Upgrade to version 5.4.2, which includes patch 9ce19a3b0d0765086a655f45d3a706ec1810404f.
Can this be exploited remotely without authentication?
The vulnerability is remotely exploitable and does not require privileges or user interaction according to the supplied vector. Exploitation has high attack complexity and is described as difficult.
What is the expected impact?
The stated impact is limited confidentiality exposure. No integrity or availability impact is specified.